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Finding the Fourth Proportional to 292,397.23, 403,509.40 and 158,261.23

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Solution

The fourth proportional to 292,397.23, 403,509.40 and 158,261.23 is: 218,401.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,397.23 : 403,509.40 = 158,261.23 : x
  2. Step 2: Convert to fraction form
    292,397.23/403,509.40 = 158,261.23/x
  3. Step 3: Cross multiply
    292,397.23x = 403,509.40 × 158,261.23
  4. Step 4: Simplify right side
    292,397.23x = 63,859,893,960.56
  5. Step 5: Solve for x
    x = 63,859,893,960.56/292,397.23
  6. Step 6: Final answer
    x = 218,401.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.